Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB) vs Samsung Galaxy S Relay 4G (SGH-T699)

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Side by side comparison between Samsung Galaxy A31 vs Samsung Galaxy S Relay 4G phones, differences, pros, cons and full specifications. What's the better?

5/12/2020 10:08 AM, updated: 6/19/2025 5:19 PM

Compare Samsung Galaxy S Relay 4G X Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB) 25Points

Specifications Compare Models Pictures

6.4"
AMOLED

1080x2400

48
MP

20mp

6GB
RAM

Octa-core

5000
mAh

(Non removable)

04Points Samsung Galaxy S Relay 4G (SGH-T699) Compare Samsung Galaxy A31 X

Specifications Compare Models Pictures

4"
AMOLED

480x800

5
MP

1.3mp

1GB
RAM

Dual-core

1800
mAh

(Removable)

What's the better phone? Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

25 Advantages Samsung Galaxy A31 (SM-A315G/DS 128GB/6GB)	vs	4 Advantages Samsung Galaxy S Relay 4G (SGH-T699)
+2GHz 64bit Octa-core (12nm)126% More powerful processor, you can open your applications faster	vs	1.5GHz 32bit Dual-core (45nm)
+6GB LPDDR4X5 times More RAM memory. Typically more responsive and better for multitasking.	vs	1GB LPDDR2
+128GB (104GB available)20 times More internal storage for applications and files	vs	8GB (5GB available)
+Until 1TB microSD, microSDXC31 times More external storage for files using memory cards	vs	Until 32GB microSD, microSDHC
+8.6 millimeters (0.34 inches)57% Thinner	vs	13.5 millimeters (0.53 inches)
+1080x2400 pixels6 times Higher resolution screen	vs	480x800 pixels
+411 PPI76% Crisper display of text, images and videos because it has more pixels per inch (ppi)	vs	233 PPI
+6.4"60% Larger screen	vs	4"
+(quad camera) 48MP + 8MP + 5MP + 5MP12 times Higher resolution main camera	vs	(back) 5MP
+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas	vs	Not supported
+(front) 20MP14 times Higher resolution secondary camera to take pictures and selfies	vs	(front) 1.3MP
+Full HD (1920x1080)125% More image quality for recording videos with the primary camera	vs	HD (1280x720)
+Android 11Advantage Android 11 is newer and safer	vs	Android 4.0.4 Ice Cream Sandwich ICS
+4G LTEAdvantage The 4G LTE network is newer and faster	vs	3G+ HSPA+
+(4G LTE) 150 Mbps3 times Faster for surfing the internet and download files	vs	(3G+ HSPA+) 42 Mbps
+Face unlock 2DAdvantage Sensors help you use the device	vs	Not supported
+Fingerprint sensor (under display)Advantage Sensors help you use the device	vs	Not supported
+5000 mAh178% Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use	vs	1800 mAh
+15W2 times More power (watts) to charge the battery faster. Sometimes, the charger that comes with the device doesn't have the same power supported by the device. Check before you buy it.	vs	5W
+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.	vs	1 slot (Single-SIM) (dedicated slot)
+Active noise cancellationAdvantage More noise-canceling microphones allow for better quality in calls and audio for recorded videos	vs	Not supported
+FMAdvantage The radio lets you listen to your songs and sports in general	vs	Not supported
+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster	vs	802.11 b/g/n [wifi4]
+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster	vs	3.0 + A2DP
+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.	vs	MicroUSB 2.0
185 grams (6.48 ounces)	vs	+147 grams (5.15 ounces)26% Lighter
Virtual proximity sensor	vs	+Proximity sensorAdvantage Sensors help you use the device
LiPo: li-ion polymer (Non removable)	vs	+Li-Ion: lithium-ion (Removable)Advantage Removable battery can be replaced easily
Not supported	vs	+DLNAAdvantage With DLNA technology you can access and play media files on TV, tablet or DLNA compatible device.

23 Common items in both devices

Plastic body, glass front

Super AMOLED

60Hz

16 million

LED flash

Only digital zoom

PDAF: phase detection autofocus / Autofocus

+16 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Change model
Model	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Other model names	Galaxy A31 SM-A315G/Dual-Sim NFC (128GB + 6GB RAM)	T-Mobile Galaxy S Blaze Q, Galaxy S Relay 4G T699 (no LTE)
Country or region available	Philippines, Hong Kong, Indonesia, Malaysia, Thailand, Taiwan, Vietnam	USA
Brand	Samsung	Samsung
Release date	4/27/2020, Announced: 3/24/2020	9/19/2012
Depth	8.6 millimeters (0.34 inches)	13.5 millimeters (0.53 inches)
Size (width x height)	73.1 x 159.3 millimeters (2.88 x 6.27 in)	66 x 126 millimeters (2.6 x 4.96 in)
Weight	185 grams (6.48 ounces)	147 grams (5.15 ounces)
Build, materials	Plastic body, glass front	Plastic body, glass front
Protection against water and others	Not supported	Not supported
📲 Display
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Display type	Super AMOLED	Super AMOLED
Screen size	6.4" inches	4" inches
Screen-to-body ratio	~84.9% (screen-to-body ratio)	~54.8% (screen-to-body ratio)
Display resolution	1080x2400 pixels (20:9)	480x800 pixels (5:3)
Touchscreen	Capacitive Multitouch	Capacitive Multitouch
Pixel density (dot pitch)	411 PPI	233 PPI
Colors	16 million	16 million
Scratch-resistant glass	Not supported	Not supported
Refresh rate	60Hz	60Hz
Display features	Not supported	Not supported
🤖 Operating System
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
System version	Android 10	Android 4.0.4 Ice Cream Sandwich ICS
Firmware update	Android 11	feature not registered
User Interface	One UI 2.5 / 3.1	TouchWiz 4.0 UI
⚙️ Processor
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Chipset	64bit: MediaTek Helio P65 (MT6768) (12nm)	32bit: Qualcomm Snapdragon S3 (MSM8260) (45nm)
CPU	Octa-core, 2 processors: 2x 2GHz ARM Cortex-A75 (Dual-core) 6x 1.7GHz ARM Cortex-A55 (Hexa-core)	Dual-core, 1 processor: 2x 1.5GHz Scorpion (Dual-core)
GPU graphical controller	ARM Mali-G52 MC2 (820MHz)	Qualcomm Adreno 220 (266MHz)
Performance (benchmark)	feature not registered	feature not registered
💽 Memory and storage
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
RAM memory	6GB LPDDR4X	1GB LPDDR2
Internal storage	128GB (104GB available) eMMC 5.1	8GB (5GB available)
External storage	Until 1TB microSD, microSDXC (dedicated slot)	Until 32GB microSD, microSDHC (dedicated slot)
📶 Mobile networks
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Dual-SIM	Dual-SIM Standby - Call active on one sim card (dedicated slot)	Not supported
SIM card	2 slots (Dual-SIM) nano-SIM (4FF)	1 slot (Single-SIM) Standard mini-SIM (2FF)
Maximum Download / Upload	150/50 Mbps	42/5.76 Mbps
Network technology	2G, 3G, 4G	2G, 3G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	UMTS 850/900/1700/1900/2100	UMTS 850/1700/1900/2100
Primary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+
Secondary 2G network	GSM 850/900/1800/1900	Not supported
Secondary 3G network	UMTS 850/900/1700/1900/2100	Not supported
Secondary 4G network	LTE Cat4 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 66) TD-LTE (38, 40, 41) VoLTE	Not supported
Secondary data network	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE	Not supported
📷 Camera
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Back camera (main camera)	(quad camera) 48 megapixels 8MP ultrawide f/2.2123°1/4"1.12µm 5MP macro f/2.4 5MP depth f/2.4	5 megapixels
Main camera resolution	8000x6000 pixels	2592x1944 pixels
Video recording (primary)	Full HD (1920x1080) 30 fps	HD (1280x720) 30 fps
Flash	LED flash	LED flash
Focal aperture	f/2.0 (aperture)	feature not registered
Focal length	26mm (lens)	feature not registered
Sensor size	1/2" inches	feature not registered
Pixel size	0.8µm pixel	feature not registered
Autofocus	PDAF: phase detection autofocus	Autofocus
Touch focus	Supported	Supported
Image stabilization	EIS: Digital stabilization	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Face detection, Smile detection	Face detection
BSI sensor	Not supported	Not supported
HDR	HDR photo on both cameras	Not supported
Camera extras	feature not registered	feature not registered
📸 Front camera
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Front camera (secondary)	20 megapixels	1.3 megapixels
Front camera resolution	5184x3840 pixels	1280x1024 pixels
Video recording (secondary)	Full HD (1920x1080)	Not supported
Front flash	Not supported	Not supported
Focal aperture	f/2.2 (aperture)	feature not registered
Focal length	feature not registered	feature not registered
Sensor size	feature not registered	feature not registered
Pixel size	feature not registered	feature not registered
🔉 Sound and multimedia
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Loudspeaker	Mono sound (not stereo)	Mono sound (not stereo)
Active noise cancellation	2 microphones or more	1 microphone
Radio	FM	Not supported
TV	Not supported	Not supported
Video formats	MP4, H.265, H.264, H.263, XviD, MKV	MP4, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+, FLAC	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
USB	USB 2.0 Type-C, USB OTG On-The-Go	MicroUSB 2.0
Audio output	3.5mm jack	3.5mm jack
TV output	USB Type-C (reversible)	Not supported
Bluetooth	5.0 + A2DP/LE	3.0 + A2DP
WiFi	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot	802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot
DLNA	Not supported	Supported
GPS	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou	A-GPS, GeoTagging
NFC	Supported	Supported
Infrared port	Not supported	Not supported
🧭 Sensors
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Sensors	Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (under display) Gyroscope Virtual proximity sensor	Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Battery type	LiPo: li-ion polymer (Non removable)	Li-Ion: lithium-ion (Removable)
Battery capacity	5000 mAh	1800 mAh
Charger, watts	15W Wired fast charging	5W Wired charging
Inductive / wireless charging	Not supported	Not supported
Talk time autonomy	feature not registered	10 hours
Standby	feature not registered	312 hours (13 days)
➕ Other features
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
Call control	Voice dialing, Voice recorder, Voice commands	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail, Push mail	SMS (Swype), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML, HTML5	HTML, XHTML, HTML5, Flash player
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Not supported	Retractable QWERTY keyboard
Miscellaneous	• Colors: Prism Black, Prism Blue, Prism Red, Prism White	• Colors: Black • Java framework
☢️ Radiation rate
	Galaxy A31 (SM-A315G/DS 128GB/6GB)	Galaxy S Relay 4G (SGH-T699)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	feature not registered
SAR 2W/kg (Europe, UK, etc.)	0.488W/kg (head), 1.68W/kg (body)	feature not registered